This paper elaborates the impacts of building exterior window and exterior window glass on building energy consumption from the aspects that the status quo of building exterior windows at home and abroad, the impact of open sash of exterior window on the use of buildings, the performance analysis of exterior window glass and the development of passive energy-saving habits.%本文从国外及我国建筑外窗现状、外窗开启扇对建筑物使用的影响、外窗玻璃的性能分析、培养被动节能的习惯,这四个方面阐述建筑外窗及外窗玻璃对建筑能耗的影响。
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